TQSX-A series suction type gravity stoner primarily used for the food process business enterprise, separate the stones, clods, metal and other impurities from wheat, paddy, rice, coarse cereals and so on. That machine adopt double vibration motors as vibration source, having the characteristics that amplitude adjustable, drive mechanism more reasonable, great cleaning effect, little dust flying, easy to dismantle, assemble, maintain and clean, indurative and durable, etc..